126621158725 has 12 divisors (see below), whose sum is σ = 157887394560. Its totient is φ = 100731018800.

The previous prime is 126621158711. The next prime is 126621158767. The reversal of 126621158725 is 527851126621.

It is not a de Polignac number, because 126621158725 - 2¹⁷ = 126621027653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14143141 + ... + 14152090.

It is an arithmetic number, because the mean of its divisors is an integer number (13157282880).

Almost surely, 2^126621158725 is an apocalyptic number.

It is an amenable number.

126621158725 is a deficient number, since it is larger than the sum of its proper divisors (31266235835).

126621158725 is a wasteful number, since it uses less digits than its factorization.

126621158725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28295420 (or 28295415 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The spelling of 126621158725 in words is "one hundred twenty-six billion, six hundred twenty-one million, one hundred fifty-eight thousand, seven hundred twenty-five".